Page 1 of 2 1 2 LastLast
Results 1 to 10 of 16

Thread: Gtx rfi 01

  1. #1

    Gtx rfi 01

    G'day,

    I am chasing some information on a GTX RFI 01. It runs fine up until around 5800 and then drops back down to 5000 and back up again. I have replaced the following items with tested good items, most new. There is no fault codes.

    Ignition Coil
    Power Valves
    TPS
    Water Valve
    Fuel Pump
    Back Mpem

    Any ideas???? I am open to any no matter how wild...

    Cheers
    Matt


  2. #2
    redneck71's Avatar
    Join Date
    Sep 2011
    Location
    middletown DE
    Posts
    74
    +1
    8
    hows the fuel pressure?,is the power valve vacuum solinoid working intermitantly?

  3. #3
    Myself's Avatar
    Join Date
    May 2007
    Location
    North Central Arkansas
    Posts
    2,772
    +1
    129
    Need to check you voltage regulator, it sounds like it could be over-volting. Or possibly something simple like water in your fuel.

  4. #4
    What will it do if it is overvoltage? Symptoms? Will on be under load or revving it up on the hose with a voltmeter on it work?
    What are the symptoms? Fuel is pretty good, it is predictable not irratic.

  5. #5
    Also fuel pressure is right. Checked at idle and right the way through the available rev range.

  6. #6
    AndinoWatercraft's Avatar
    Join Date
    Feb 2008
    Location
    Puerto Rico
    Posts
    306
    +1
    4
    In some models the exhaust hoses tend to colapse and obstruct the exhaust or in other cases the inner part of the hose comes a part (like puffs) Notice any smoke inside the hull? Also you may want to check your tps (will need the mpem programer to do it) or the adjustment on the throttle cable. If to tight may not read correctly or if the tps is not initialized could not work well. Just my two scents.

    For the voltage inspection of the regulator get a Voltmeter and conect it to the battery ,start the engine and slowly accelerate, it shoudl rise up to 14 volts more or less and if the battery is in good condition the voltage should drop (guys correct me if I'm wrong.)

  7. #7
    AndinoWatercraft's Avatar
    Join Date
    Feb 2008
    Location
    Puerto Rico
    Posts
    306
    +1
    4
    Just remember. One time with a DI unit talking about fuel pressure. To catch the problem I went on the water with the fuel gage on and test the craft . That way I got to found that at some point riding I was loosing pressure. those pumps have a sensitive regulator.

    Hope this helps.

  8. #8
    Myself's Avatar
    Join Date
    May 2007
    Location
    North Central Arkansas
    Posts
    2,772
    +1
    129
    Yes the regulator over-volting generally makes a predictable stutter at higher rpms. Just put a volt meter on the battery then start it and rev it up to around 5000 rpm (after the motor is warm of course). If your voltage spikes up above 14v (i had one this summer hit 18v) the regulator is bad. Also try new plugs.

  9. #9
    Response in order. Thanks for the idea i appreciate all of them

    Tested in water under load Fuel pressure and held fine.
    Exhaust i will check later this arvo
    New plugs already
    TPS is brand new and zeroed with BUDS

    Also no fault codes on buds.

  10. #10
    I will test the Reg later tonight hopefully.

Page 1 of 2 1 2 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. FS - Parts Stator assembly and cover from 01 GTX RFI
    By thetolleyman in forum Sea Doo Classifieds
    Replies: 1
    Last Post: 10-01-2012, 03:11 PM
  2. GTX RFI problem
    By PWCGEEK in forum Sea Doo Open Discussion
    Replies: 7
    Last Post: 09-22-2010, 02:10 PM
  3. 01 gtx rfi module problem, please
    By MeanDmax in forum Sea Doo ECU Support
    Replies: 0
    Last Post: 08-31-2010, 10:56 PM
  4. Purchasing Dilemma- 99 GTX or 01 RxDI
    By bwinter in forum Sea Doo Open Discussion
    Replies: 11
    Last Post: 07-05-2007, 12:15 PM
  5. Parasitic draw 02 GTX RFI
    By WFO in forum 4-Tec Performance
    Replies: 6
    Last Post: 09-08-2006, 06:28 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •